I am sure this question is posed ALL THE TIME, but I cannot find the proper answer.
I am a smartphone moron. I never use wi-fi because I have a good signal with 3- and 4G.
So is it possible to turn off everything else on my phone, buy an international data plan and use the onboard wi-fi? Or will my phone automatically start to sync? I don't want to text or call, just upload (and brag) pictures to social media.